Volatile organic waste gas treatment device for plastic tray production machine

Abstract

The invention relates to the technical field of waste gas separation, and particularly discloses a plastic tray production machine volatile organic waste gas treatment device which comprises a production machine, a filter box, a zeolite rotating wheel, a catalytic combustion furnace and a heat conduction oil tank. The production machine table conveys waste gas to the filter box through a pipeline; the filter box is communicated with one side of the zeolite rotating wheel adsorption area through a pipeline, the other side of the zeolite rotating wheel adsorption area exhausts adsorbed waste gas to the outside through a pipeline, and the adsorption area of the zeolite rotating wheel absorbs volatile organic compounds; the desorption area of the zeolite rotating wheel is communicated with a fresh air heating mechanism through a pipeline, the fresh air heating mechanism heats outside air and conveys the outside air to one side of the desorption area of the zeolite rotating wheel, and the other side of the desorption area of the zeolite rotating wheel is communicated with a catalytic combustion furnace; an oil outlet pipe and an oil inlet pipe of the heat conduction oil tank are communicated with an oil inlet and an oil outlet of the production machine mold respectively, and the catalytic combustion furnace heats a first heating area of the oil outlet pipe of the heat conduction oil tank. The system has the effects of energy conservation and environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas separation, and in particular to a volatile organic waste gas treatment device for a plastic pallet production machine. Background Art

[0002] During the production process of plastic pallets, a large amount of volatile organic compounds, particulate matter and dust are easily generated on the production machines. The direct emission of these waste gases can easily cause environmental pollution and personal injury.

[0003] In the related art, volatile organic compounds are adsorbed by activated carbon, the volatile organic compounds enriched on the activated carbon are desorbed by high temperature, and the desorbed volatile organic compounds are burned to generate carbon dioxide and water for emission, thereby meeting the exhaust gas emission standards.

[0004] However, in the process of treating volatile organic waste gas, the organic waste gas is directly burned and discharged, which will generate a large amount of heat during the combustion of volatile organic waste gas, causing this part of heat to be lost, resulting in energy waste. Summary of the invention

[0005] In order to make the treatment process of volatile organic waste gas more energy-saving and environmentally friendly, the present application provides a volatile organic waste gas treatment device for a plastic pallet production machine.

[0006] The volatile organic waste gas treatment device for a plastic pallet production machine provided in this application adopts the following technical solution:

[0007] A volatile organic waste gas treatment device for a plastic pallet production machine comprises a production machine, a filter box, a zeolite rotor, a catalytic combustion furnace and a thermal oil tank; the production machine transports the waste gas to the filter box through a pipeline, and the filter box filters particulate matter and dust in the waste gas; the filter box is connected to one side of an adsorption zone of the zeolite rotor through a pipeline, and the other side of the adsorption zone of the zeolite rotor discharges the adsorbed waste gas to the outside through a pipeline, and the adsorption zone of the zeolite rotor absorbs volatile organic matter; the desorption zone of the zeolite rotor is connected to a fresh air heating mechanism through a pipeline, and the fresh air heating mechanism heats the outside air and transports it to one side of the desorption zone of the zeolite rotor, and the other side of the desorption zone of the zeolite rotor is connected to the catalytic combustion furnace; the oil outlet pipe and the oil inlet pipe of the thermal oil tank are respectively connected to the oil inlet and the oil outlet of the production machine mold, and the catalytic combustion furnace heats the first heating zone of the oil outlet pipe of the thermal oil tank.

[0008] Optionally, a second heating zone is provided between the first heating zone on the oil outlet pipe of the thermal oil tank and the production machine, and the second heating zone is heated by external electricity or gas.

[0009] Optionally, a refrigeration pipe is connected between the thermal oil tank and the oil inlet pipe, and a refrigerator is connected to the refrigeration pipe.

[0010] Optionally, a plate heat exchanger is connected between the catalytic combustion furnace and the fresh air heating mechanism through a pipeline, and the plate heat exchanger is connected to a fresh air inlet pipe and an exhaust gas discharge pipe.

[0011] Optionally, the filter box includes a box body, a metal filter, a metal support net and a filter cloth; an air inlet connected to a production machine through a pipe is provided on one side of the box body, and an air outlet connected to a zeolite wheel adsorption zone through a pipe is provided on the other side of the box body; the metal filter is installed in the box body, the metal support net is installed in the box body, and the filter cloth is laid on the side of the metal support net close to the metal filter; a brush is provided on the side of the metal filter away from the filter cloth, the brush slides on the side of the metal filter, and a first driving mechanism for driving the brush to move up and down is installed on the metal filter.

[0012] Optionally, the first driving mechanism includes a first motor, a first lead screw, a first transmission ring, a connecting plate and an installation box; the first motor is installed on the top surface of the box body, the first lead screw is rotatably connected to the top and bottom surfaces of the box body, the top end of the first lead screw is connected to the output shaft of the first motor, the first transmission ring is sleeved on the first lead screw and threadedly transmitted, one end of the connecting plate is connected to the first transmission ring, the top surface of the installation box is installed on the other end of the connecting plate, and the brush is installed in the installation box; the top and bottom ends of both sides of the metal filter are connected to support plates, a guide rod is connected between the two support plates on the same side, a slider is slidably provided on the guide rod, and the slider is installed on the side of the installation box.

[0013] Optionally, a movable opening is provided on the side of the installation box close to the metal filter, the brush plate of the brush is located in the installation box, the bristles of the brush are in the movable opening, the brush is pressed against the surface of the metal filter, and a first spring is provided in the installation box, the first spring is pressed against the inner wall of the installation box and the side of the brush plate.

[0014] Optionally, a fixing box is installed on the side of the metal support mesh away from the filter cloth, and an opening is provided on the side of the fixing box close to the metal support mesh. A sliding plate is slidingly provided on the inner wall of the opening. One side of the sliding plate passes through the metal support mesh and contacts the filter cloth, and the other side of the sliding plate is connected to a limiting plate. The limiting plate is located in the fixing box, and the limiting plate slides in the fixing box; a second spring is provided in the fixing box, and the second spring is pressed between the side of the limiting plate and the inner wall of the fixing box; a second driving mechanism for driving the sliding plate to compress the second spring is installed on the box body.

[0015] Optionally, a support frame is installed on the top surface of the box body, and the second driving mechanism includes a winding disk, a rotating tube, a movable shaft, a third spring, a guide wheel and a traction rope; the winding disk is rotatably connected to one side of the support frame through the rotating shaft, the rotating tube is rotatably connected to one side of the support frame, the movable shaft slides in the rotating tube, the circumferential surface of the movable shaft is connected to four guide bars, and a guide groove for the guide bars to slide is arranged in the rotating tube; a plurality of teeth are integrally formed around the end surface of the rotating shaft, and a spacing is provided between two adjacent teeth, the movable shaft and the rotating shaft are coaxial, and a tooth is integrally formed on the end surface of the movable shaft close to the rotating shaft, and the teeth of the movable shaft and the teeth of the rotating shaft are meshed; the third spring is installed in the rotating tube, one end of the third spring is pressed against the end surface of the movable shaft, and the other end of the third spring is pressed against the end surface of the closed end of the rotating tube; the guide wheel is installed on the side of the fixed box away from the metal support net, one end of the traction rope is connected to the circumferential surface of the winding disk, and the other end of the traction rope passes through the top surface of the box body and is wound around the bottom of the guide wheel and connected to the side of the limit plate; a driving component for driving the rotating tube to rotate is installed on the support frame.

[0016] Optionally, three fixed boxes are evenly arranged along the height direction of the metal support mesh, and three second drive mechanisms are also arranged; the driving assembly includes a second motor, a rotating shaft and a synchronous pulley group; the second motor is installed on one side of the support frame, the rotating shaft is rotatably connected to one side of the support frame, three synchronous pulley groups are arranged, and the synchronous pulley groups are installed on the rotating tube and the rotating shaft, and each synchronous pulley group drives a rotating tube to rotate.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] 1. When treating the waste gas of the production machine, the waste gas generated by the production machine is introduced into the filter box by the fan. The filter box filters the particulate matter and dust, allowing the volatile organic matter to pass through the filter box and enter the adsorption area of ​​the zeolite wheel through the pipeline. The zeolite wheel absorbs the volatile organic matter. The zeolite wheel rotates to rotate the enriched volatile organic matter to the desorption area. The fresh air heating mechanism introduces fresh air through the fan and heats it, allowing the hot air flow to pass through the desorption area, so that a large amount of volatile organic matter is desorbed and enters the pipeline between the zeolite wheel and the catalytic combustion furnace. The catalytic combustion furnace burns the volatile organic matter and transfers the heat to the heat transfer oil through the oil outlet pipe. The pump on the oil outlet pipe transports the heat transfer oil to the mold of the production machine to heat the mold. Then the heat transfer oil flows back to the heat transfer oil tank from the oil inlet pipe. The heat generated by the combustion of the volatile organic matter is transferred to the mold through the heat transfer oil to heat the mold, which can save the energy for heating the mold, making the waste gas treatment device more energy-saving and environmentally friendly.

[0019] 2. The high-temperature exhaust gas generated by the catalytic combustion furnace flows to the plate heat exchanger through the pipeline. The fresh air intake pipe introduces fresh air into the plate heat exchanger through the fan box. The plate heat exchanger transfers the heat of the exhaust gas to the fresh air. The exhaust gas that has obtained heat exchange is discharged to the outside through the exhaust gas discharge pipe. The heated fresh air then flows to the fresh air heating mechanism through the pipeline; if the fresh air temperature does not reach the set value, the fresh air heating mechanism can heat the fresh air again through the internal electric heating wire, and transport the hot air flow used for desorption to the desorption area of ​​the zeolite rotor, so as to further utilize the energy of the exhaust gas after combustion and save energy;

[0020] 3. Exhaust gas enters the box, and first passes through the metal filter, and then through the filter. The metal filter filters large particles, and the filter cloth filters dust. After long-term use, a large number of large particles accumulate on the surface of the metal filter, blocking the mesh. The first drive mechanism drives the brush to move up and down, and the brush cleans the particles on the surface of the metal filter.

[0021] 4. The second motor drives the rotating shaft to rotate, and the rotating shaft drives the rotating tube to rotate through the synchronous pulley group, and the rotating tube drives the movable shaft to rotate. The movable shaft drives the teeth of the rotating shaft to rotate through the teeth, and also drives the rotating shaft to rotate. The rotating shaft drives the winding disk to rotate, and the winding disk winds up the traction rope. The traction rope pulls the limit plate through the guide wheel, and the limit plate drives the sliding plate to move, thereby releasing the contact between the sliding plate and the filter cloth and compressing the limit plate spring; when the pulling force of the traction rope is too large, the teeth of the movable shaft gradually cross one of the teeth of the rotating shaft, and the movable shaft compresses the third spring. At this time, the movable shaft and the rotating shaft slip, and the second spring rebounds the limit plate, and the limit plate hits the filter cloth, causing the filter cloth to shake and the dust to fall off. When the second motor drives the rotating shaft to move quickly, the sliding plate vibrates at a high frequency, shaking off the dust on the filter cloth, and the three sliding plates shake at staggered peaks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the process structure of the exhaust gas treatment device of the embodiment of the present application;

[0023] Figure 2 It is a schematic diagram of the structure of the filter box of the embodiment of the present application;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter box of the embodiment of the present application;

[0025] Figure 4 is a schematic cross-sectional structure diagram of the installation box of an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of the structure of the filter cloth of the embodiment of the present application;

[0027] Figure 6 It is a schematic diagram of the structure of the metal support mesh of an embodiment of the present application;

[0028] Figure 7 This application Figure 5 A schematic diagram of the enlarged structure of part A;

[0029] Figure 8 This application Figure 6 A schematic diagram of the enlarged structure of part B;

[0030] Fig. 9 This application Figure 6 A schematic diagram of the enlarged structure of the middle C part;

[0031] Fig.10 It is a partial structural diagram of the second driving mechanism of the embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1. Production machine; 2. Filter box; 21. Box body; 211. Air inlet; 212. Air outlet; 213. Support frame; 22. Metal filter screen; 23. Metal support screen; 24. Filter cloth; 25. Brush; 26. First drive mechanism; 261. First motor; 262. First lead screw; 263. First transmission ring; 264. Connecting plate; 265. Mounting box; 2651. Movable opening; 2652. First spring; 2653. Baffle; 266. Guide rod; 267. Sliding block; 27. Fixed box; 271. Opening; 272. Sliding plate; 273. Limiting plate; 274. Second spring; 28. Second drive mechanism; 281. Winding disk; 2811. Rotating shaft; 2812. Teeth; 282. Rotating tube; 2821. Guide groove; 283. Movable shaft; 2831. Guide strip; 284. Third spring; 285. Guide wheel; 286. Traction rope; 29. ​​Driving assembly; 291. Second motor; 292. Rotating shaft; 293. Synchronous belt pulley set; 3. Zeolite rotor; 301. Adsorption zone; 302. Desorption zone; 303. Cooling zone; 31. Fresh air heating mechanism; 32. Fresh air cooling mechanism; 4. Catalytic combustion furnace; 5. Thermal oil tank; 51. First heating zone; 52. Second heating zone; 53. Refrigerator; 6. Plate heat exchanger. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-10 This application is described in further detail.

[0035] The present application embodiment discloses a volatile organic waste gas treatment device for a plastic pallet production machine. Figure 1-10The waste gas treatment device includes a production machine 1, a filter box 2, a zeolite wheel 3, a catalytic combustion furnace 4 and a thermal oil box 5; the production machine 1 transports the waste gas to the filter box 2 through a pipeline, and the filter box 2 filters the particulate matter and dust in the waste gas; the filter box 2 is connected to one side of the adsorption area 301 of the zeolite wheel 3 through a pipeline, and the other side of the adsorption area 301 of the zeolite wheel 3 discharges the adsorbed waste gas to the outside through a pipeline, and the adsorption area 301 of the zeolite wheel 3 Absorption; the desorption zone 302 of the zeolite rotor 3 is connected to the fresh air heating mechanism 31 through a pipeline, the fresh air heating mechanism 31 heats the outside air and transports it to one side of the desorption zone 302 of the zeolite rotor 3, and the other side of the desorption zone 302 of the zeolite rotor 3 is connected to the catalytic combustion furnace 4; the oil outlet pipe and the oil inlet pipe of the thermal oil tank 5 are respectively connected to the oil inlet and the oil outlet of the mold of the production machine 1, and the catalytic combustion furnace 4 heats the first heating zone 51 of the oil outlet pipe of the thermal oil tank 5.

[0036] When treating the waste gas of the production machine 1, the waste gas generated by the production machine 1 is introduced into the filter box 2 by the fan, and the filter box 2 filters the particulate matter and dust, so that the volatile organic matter passes through the filter box 2 and enters the adsorption area 301 of the zeolite wheel 3 through the pipeline, and the zeolite wheel 3 absorbs the volatile organic matter. The zeolite wheel 3 rotates to rotate the enriched volatile organic matter to the desorption area 302, and the fresh air heating mechanism 31 introduces fresh air through the fan and heats it, so that the hot air flow passes through the desorption area 302, so that a large amount of volatile organic matter is absorbed. The volatile organic matter is desorbed and enters the pipeline between the zeolite wheel 3 and the catalytic combustion furnace 4. The catalytic combustion furnace 4 burns the volatile organic matter and transfers the heat to the heat transfer oil through the oil outlet pipe. The pump on the oil outlet pipe transports the heat transfer oil to the mold of the production machine 1 to heat the mold. Then the heat transfer oil flows back to the heat transfer oil tank 5 from the oil inlet pipe. The heat generated by the combustion of the volatile organic matter is transferred to the mold through the heat transfer oil to heat the mold, which can save the energy for heating the mold and make the exhaust gas treatment device more energy-saving and environmentally friendly.

[0037] A second heating zone 52 is provided between the first heating zone 51 on the oil outlet pipe of the thermal oil tank 5 and the production machine 1, and the second heating zone 52 is heated by external electricity or gas; when the first heating zone 51 fails to heat the thermal oil in the oil inlet pipe to the required temperature, heat is supplemented by the second heating zone 52 to heat the thermal oil to the required temperature.

[0038] A refrigeration pipe is connected between the thermal oil tank 5 and the oil inlet pipe, and a refrigerator 53 is connected to the refrigeration pipe; when the temperature of the mold of the production machine 1 is too high, the refrigerator extracts the thermal oil in the thermal oil tank 5 through the internal pump body and cools it, and transports it to the mold of the production machine 1 through the oil inlet pipe to cool the mold and adjust the mold temperature to an appropriate range.

[0039] A plate heat exchanger 6 is connected between the catalytic combustion furnace 4 and the fresh air heating mechanism 31 through a pipeline, and a fresh air inlet pipe and an exhaust gas exhaust pipe are connected to the plate heat exchanger 6; the high-temperature exhaust gas generated by combustion in the catalytic combustion furnace 4 flows to the plate heat exchanger 6 through the pipeline, and the fresh air inlet pipe introduces fresh air through the fan box plate heat exchanger 6, and the plate heat exchanger 6 transfers the heat of the exhaust gas to the fresh air, and the exhaust gas obtained by heat exchange is discharged to the outside through the exhaust gas exhaust pipe, and the heated fresh air flows to the fresh air heating mechanism 31 through the pipeline; if the fresh air temperature does not reach the set value, the fresh air heating mechanism 31 can heat the fresh air again through the internal electric heating wire, and transport the hot air flow used for desorption to the desorption zone 302 of the zeolite rotor 3, so as to further utilize the exhaust gas energy after combustion and save energy.

[0040] The cooling zone 303 of the zeolite rotor 3 is connected to a fresh air cooling mechanism 32 through a pipeline. The fresh air cooling mechanism 32 is used to cool the external fresh air to cool the desorbed part of the zeolite rotor 3 to facilitate the subsequent absorption of volatile organic compounds.

[0041] The filter box 2 includes a box body 21, a metal filter screen 22, a metal support screen 23 and a filter cloth 24; an air inlet 211 connected to the production machine 1 through a pipeline is arranged on one side of the box body 21, and an air outlet 212 connected to the adsorption area 301 of the zeolite wheel 3 through a pipeline is arranged on the other side of the box body 21; the metal filter screen 22 is installed in the box body 21, the metal support screen 23 is installed in the box body 21, and the filter cloth 24 is laid on the side of the metal support screen 23 close to the metal filter screen 22; a brush 25 is arranged on the side of the metal filter screen 22 away from the filter cloth 24, and the brush 25 slides on the side of the metal filter screen 22, and a first driving mechanism 26 for driving the brush 25 to move up and down is installed on the metal filter screen 22.

[0042] The exhaust gas enters the box body 21, and the exhaust gas first passes through the metal filter 22, and then passes through the filter. The metal filter 22 filters large particles, and the filter cloth 24 filters dust. After long-term use, a large number of large particles accumulate on the surface of the metal filter 22, clogging the mesh. The first drive mechanism 26 drives the brush 25 to move up and down, and the brush 25 cleans the particles on the surface of the metal filter 22.

[0043] The first driving mechanism 26 includes a first motor 261, a first lead screw 262, a first transmission ring 263, a connecting plate 264 and an installation box 265; the first motor 261 is installed on the top surface of the box body 21, the first lead screw 262 is rotatably connected to the top and bottom surfaces of the box body 21, the top end of the first lead screw 262 is connected to the output shaft of the first motor 261, the first transmission ring 263 is sleeved on the first lead screw 262 and threadedly driven, one end of the connecting plate 264 is connected to the first transmission ring 263, the top surface of the installation box 265 is installed on the other end of the connecting plate 264, and the brush 25 is installed in the installation box 265; the top and bottom ends of both sides of the metal filter 22 are connected to support plates, and a guide rod 266 is connected between the two support plates on the same side, and a slider 267 is slidably provided on the guide rod 266, and the slider 267 is installed on the side of the installation box 265.

[0044] When it is necessary to drive the brush 25 to move up and down, the first motor 261 drives the first screw 262 to rotate, the first screw 262 drives the first transmission ring 263 to rise and fall, the first transmission ring 263 drives the connecting plate 264 to rise and fall, the connecting plate 264 drives the installation box 265 to rise and fall, and the installation box 265 drives the brush 25 to rise and fall.

[0045] A movable opening 2651 is provided on the side of the installation box 265 close to the metal filter 22, the brush plate of the brush 25 is located in the installation box 265, the bristles of the brush 25 are in the movable opening 2651, the brush 25 is pressed against the surface of the metal filter 22, and a first spring 2652 is provided in the installation box 265, the first spring 2652 is pressed against the inner wall of the installation box 265 and the side of the brush plate of the brush 25; the first spring 2652 can press the brush 25 against the surface of the metal filter 22, so that the brush 25 can clean the metal filter 22 more thoroughly.

[0046] A baffle 2653 is installed on the side of the installation box 265 away from the filter cloth 24, and the side of the baffle 2653 slides on the inner wall of the box body 21; when the brush 25 descends, the brush 25 scrapes off the particles, and the baffle 2653 can press down the dust scraped by the brush 25.

[0047] A fixing box 27 is installed on the side of the metal support mesh 23 away from the filter cloth 24, and an opening 271 is provided on the side of the fixing box 27 close to the metal support mesh 23. A sliding plate 272 is slidably provided on the inner wall of the opening 271. One side of the sliding plate 272 passes through the metal support mesh 23 and contacts the filter cloth 24, and the other side of the sliding plate 272 is connected to a limiting plate 273, which is located in the fixing box 27 and slides in the fixing box 27; a second spring 274 is provided in the fixing box 27, and the second spring 274 is pressed between the side of the limiting plate 273 and the inner wall of the fixing box 27; a second driving mechanism 28 for driving the sliding plate 272 to compress the second spring 274 is installed on the box body 21.

[0048] A support frame 213 is installed on the top surface of the box body 21, and the second driving mechanism 28 includes a winding disk 281, a rotating tube 282, a movable shaft 283, a third spring 284, a guide wheel 285 and a traction rope 286; the winding disk 281 is rotatably connected to one side of the support frame 213 through a rotating shaft 2811, the rotating tube 282 is rotatably connected to one side of the support frame 213, the movable shaft 283 slides in the rotating tube 282, and four guide strips 2831 are connected to the circumference of the movable shaft 283, and a guide groove 2821 for the guide strips 2831 to slide is provided in the rotating tube 282; a plurality of teeth 2812 are integrally formed on the end surface of the rotating shaft 2811, and there is a spacing between two adjacent teeth 2812, the movable shaft 283 and the rotating shaft 2811 are coaxial, and the movable shaft 2 A tooth 2812 is integrally formed on the end surface of 83 close to the rotating shaft 292, and the tooth 2812 of the movable shaft 283 is meshed with the tooth 2812 of the rotating shaft 2811; a third spring 284 is installed in the rotating tube 282, one end of the third spring 284 is pressed against the end surface of the movable shaft 283, and the other end of the third spring 284 is pressed against the end surface of the closed end of the rotating tube 282; a guide wheel 285 is installed on the side of the fixed box 27 away from the metal support net 23, one end of the traction rope 286 is connected to the circumference of the winding disk 281, and the other end of the traction rope 286 passes through the top surface of the box body 21 and is wound around the bottom of the guide wheel 285 and connected to the side of the limiting plate 273; a driving component 29 for driving the rotating tube 282 to rotate is installed on the support frame 213.

[0049] Three fixed boxes 27 are evenly arranged along the height direction of the metal support mesh 23, and three second driving mechanisms 28 are also arranged; the driving assembly 29 includes a second motor 291, a rotating shaft 292 and a synchronous pulley group 293; the second motor 291 is installed on one side of the support frame 213, the rotating shaft 292 is rotatably connected to one side of the support frame 213, and three synchronous pulley groups 293 are arranged, and the synchronous pulley groups 293 are installed on the rotating tube 282 and the rotating shaft 292, and each synchronous pulley group 293 drives a rotating tube 282 to rotate.

[0050] The second motor 291 drives the rotating shaft 292 to rotate, and the rotating shaft 292 drives the rotating tube 282 to rotate through the synchronous pulley set 293, and the rotating tube 282 drives the movable shaft 283 to rotate, and the movable shaft 283 drives the teeth 2812 of the rotating shaft 2811 to rotate through the teeth 2812, and also drives the rotating shaft 2811 to rotate, and the rotating shaft 2811 drives the winding disk 281 to rotate, and the winding disk 281 winds the traction rope 286, and the traction rope 286 pulls the limiting plate 273 through the guide wheel 285, and the limiting plate 273 drives the sliding plate 272 to move, so as to release the contact between the sliding plate 272 and the filter cloth 24 and limit the position. Plate 273 compresses the spring; when the pulling force of the traction rope 286 is too large, the teeth 2812 of the movable shaft 283 gradually pass over one of the teeth 2812 of the rotating shaft 2811, and the movable shaft 283 compresses the third spring 284. At this time, the movable shaft 283 and the rotating shaft 2811 slip, and the second spring 274 rebounds the limit plate 273, and the limit plate 273 hits the filter cloth 24, causing the filter cloth 24 to shake and cause the dust to fall. When the second motor 291 drives the rotating shaft 292 to move quickly, the sliding plate 272 vibrates at a high frequency, shaking off the dust on the filter cloth 24, and the three sliding plates 272 vibrate at staggered peaks.

[0051] The implementation principle of the volatile organic waste gas treatment device of a plastic pallet production machine 1 of the present application embodiment is as follows: when treating the waste gas of the production machine 1, the waste gas generated by the production machine 1 is introduced into the filter box 2 by the fan, and the filter box 2 filters the particulate matter and dust, so that the volatile organic matter passes through the filter box 2 and enters the adsorption area 301 of the zeolite wheel 3 through the pipeline, and the zeolite wheel 3 absorbs the volatile organic matter, and the zeolite wheel 3 rotates to rotate the enriched volatile organic matter to the desorption area 302, and the fresh air heating mechanism 31 introduces fresh air through the fan and heats it, so that The hot air flow passes through the desorption zone 302, so that a large amount of volatile organic matter is desorbed and enters the pipeline between the zeolite rotor 3 and the catalytic combustion furnace 4. The catalytic combustion furnace 4 burns the volatile organic matter and transfers the heat to the heat transfer oil through the oil outlet pipe. The pump on the oil outlet pipe transports the heat transfer oil to the mold of the production machine 1 to heat the mold. Then the heat transfer oil returns to the heat transfer oil tank 5 from the oil inlet pipe. The heat generated by the combustion of the volatile organic matter is transferred to the mold through the heat transfer oil to heat the mold, which can save the energy for heating the mold, making the exhaust gas treatment device more energy-saving and environmentally friendly.

[0052] Figure 1 The arrows in the diagram represent the direction of flow of liquid, gas, and energy.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A volatile organic waste gas treatment device for a plastic pallet production machine, characterized by: The invention comprises a production machine (1), a filter box (2), a zeolite wheel (3), a catalytic combustion furnace (4) and a heat transfer oil box (5); the production machine (1) transports the waste gas to the filter box (2) through a pipeline, and the filter box (2) filters the particulate matter and dust in the waste gas; the filter box (2) and one side of the adsorption area (301) of the zeolite wheel (3) are connected through a pipeline, and the other side of the adsorption area (301) of the zeolite wheel (3) discharges the adsorbed waste gas to the outside through a pipeline, and the adsorption area (301) of the zeolite wheel (3) absorbs volatile organic matter. The desorption zone (302) of the zeolite rotor (3) is connected to a fresh air heating mechanism (31) through a pipeline, the fresh air heating mechanism (31) heats the outside air and transports it to one side of the desorption zone (302) of the zeolite rotor (3), and the other side of the desorption zone (302) of the zeolite rotor (3) is connected to the catalytic combustion furnace (4); the oil outlet pipe and the oil inlet pipe of the heat transfer oil tank (5) are respectively connected to the oil inlet and the oil outlet of the mold of the production machine (1), and the catalytic combustion furnace (4) heats the first heating zone (51) of the oil outlet pipe of the heat transfer oil tank (5).

2. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 1 is characterized by: A second heating zone (52) is provided between a first heating zone (51) on the oil outlet pipe of the thermal oil tank (5) and the production machine (1), and the second heating zone (52) is heated by external electricity or gas.

3. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 1 is characterized by: A refrigeration pipe is connected between the heat transfer oil tank (5) and the oil inlet pipe, and a refrigerator (53) is connected to the refrigeration pipe.

4. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 1 is characterized by: A plate heat exchanger (6) is connected between the catalytic combustion furnace (4) and the fresh air heating mechanism (31) via a pipeline, and a fresh air intake pipe and an exhaust gas discharge pipe are connected to the plate heat exchanger (6).

5. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 1 is characterized by: The filter box (2) comprises a box body (21), a metal filter screen (22), a metal support screen (23) and a filter cloth (24); an air inlet (211) connected to a production machine (1) through a pipeline is arranged on one side of the box body (21), and an air outlet (212) connected to an adsorption area (301) of a zeolite wheel (3) through a pipeline is arranged on the other side of the box body (21); the metal filter screen (22) is installed in the box body (21), the metal support screen (23) is installed in the box body (21), and the filter cloth (24) is laid on the side of the metal support screen (23) close to the metal filter screen (22); a brush (25) is arranged on the side of the metal filter screen (22) away from the filter cloth (24), the brush (25) slides on the side of the metal filter screen (22), and a first driving mechanism (26) for driving the brush (25) to move up and down is installed on the metal filter screen (22).

6. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 5 is characterized by: The first driving mechanism (26) comprises a first motor (261), a first lead screw (262), a first transmission ring (263), a connecting plate (264) and a mounting box (265); the first motor (261) is mounted on the top surface of the box body (21); the first lead screw (262) is rotatably connected to the top surface and the bottom surface of the box body (21); the top end of the first lead screw (262) is connected to the output shaft of the first motor (261); the first transmission ring (263) is sleeved on the first lead screw (262) and Screw transmission, one end of the connecting plate (264) is connected to the first transmission ring (263), the top surface of the installation box (265) is installed on the other end of the connecting plate (264), and the brush (25) is installed in the installation box (265); the top and bottom ends of both sides of the metal filter (22) are connected to support plates, and a guide rod (266) is connected between the two support plates on the same side. A slider (267) is slidably arranged on the guide rod (266), and the slider (267) is installed on the side of the installation box (265).

7. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 6 is characterized by: A movable opening (2651) is provided on the side of the installation box (265) close to the metal filter (22); a brush plate of the brush (25) is located in the installation box (265); the bristles of the brush (25) are in the movable opening (2651); the brush (25) is pressed against the surface of the metal filter (22); a first spring (2652) is provided in the installation box (265); the first spring (2652) is pressed against the inner wall of the installation box (265) and the side of the brush plate of the brush (25).

8. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 5 is characterized by: A fixing box (27) is installed on the side of the metal support net (23) away from the filter cloth (24); an opening (271) is provided on the side of the fixing box (27) close to the metal support net (23); a sliding plate (272) is slidably provided on the inner wall of the opening (271); one side of the sliding plate (272) passes through the metal support net (23) and contacts the filter cloth (24); the other side of the sliding plate (272) is connected to a limiting plate (273); the limiting plate (273) is located in the fixing box (27); the limiting plate (273) slides in the fixing box (27); a second spring (274) is provided in the fixing box (27); the second spring (274) is pressed between the side of the limiting plate (273) and the inner wall of the fixing box (27); and a second driving mechanism (28) for driving the sliding plate (272) to compress the second spring (274) is installed on the box body (21).

9. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 8, characterized in that: A support frame (213) is installed on the top surface of the box body (21), and the second driving mechanism (28) includes a winding disk (281), a rotating tube (282), a movable shaft (283), a third spring (284), a guide wheel (285) and a traction rope (286); the winding disk (281) is rotatably connected to one side of the support frame (213) through a rotating shaft (2811), the rotating tube (282) is rotatably connected to one side of the support frame (213), and the movable shaft (283) is rotatably connected to one side of the support frame (213). The movable shaft (283) slides in the rotating tube (282), the circumference of the movable shaft (283) is connected with four guide bars (2831), and the rotating tube (282) is provided with a guide groove (2821) for the guide bars (2831) to slide; a plurality of teeth (2812) are integrally formed around the end surface of the rotating shaft (2811), and there is a spacing between two adjacent teeth (2812), the movable shaft (283) and the rotating shaft (2811) are coaxial, and the movable shaft (283) and the rotating shaft (2811) are coaxial. The end surface of the movable shaft (283) close to the rotating shaft (292) is integrally formed with a tooth (2812), and the tooth (2812) of the movable shaft (283) is meshed with the tooth (2812) of the rotating shaft (2811); the third spring (284) is installed in the rotating tube (282), one end of the third spring (284) is pressed against the end surface of the movable shaft (283), and the other end of the third spring (284) is pressed against the closed end of the rotating tube (282). end surface; the guide wheel (285) is installed on the side of the fixing box (27) away from the metal support net (23); one end of the traction rope (286) is connected to the circumference of the winding disk (281); the other end of the traction rope (286) passes through the top surface of the box body (21) and is wound under the guide wheel (285) and connected to the side of the limit plate (273); a driving component (29) for driving the rotating tube (282) to rotate is installed on the support frame (213).

10. The volatile organic waste gas treatment device for a plastic pallet production machine according to claim 9, characterized in that: Three fixing boxes (27) are evenly arranged along the height direction of the metal support net (23), and three second driving mechanisms (28) are also arranged; the driving assembly (29) comprises a second motor (291), a rotating shaft (292) and a synchronous pulley group (293); the second motor (291) is installed on one side of the support frame (213), the rotating shaft (292) is rotatably connected to one side of the support frame (213), and three synchronous pulley groups (293) are arranged, and the synchronous pulley groups (293) are installed on the rotating tube (282) and the rotating shaft (292), and each synchronous pulley group (293) drives a rotating tube (282) to rotate.

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